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TABLE 8 <br /> ORAL AND DERMAL CANCER RISK: RESIDENTIAL SCENARIO 1 <br /> SURLAND HOMES-BRIDLE CREEK <br /> Tracy,San Joaquin County,California <br /> COPC Cs ro SFo ABS Oral/Dermal Risk <br /> ' BTEX <br /> Toluene0.0010 NA 0.1 NA <br /> Eth lbenzene 0.0070 LIE-02 0.1 2.6E-10 <br /> Xylene(s) 0.0050 NA 0.1 NA <br /> PAHs <br /> Acenaphthene 0.29 NA 0.15 NA <br /> Anthracene 0.26 NA 0.15 NA <br /> ' <br /> Benzo(a)anthracene 0.19 1.2E+00 0.15 1.0E-06 <br /> Benzo a ene 0.011 1.2E+01 0.15 5.8E-07 <br /> Benzo fluoranthene 0.056 1.2E+00 0.15 2.9E-07 <br /> Benzo(g,h,i)perylene 0.21 NA 0.15 NA <br /> Benzo k fluoranthene 0.00067 1.2E+00 0.15 3.5E-09 <br /> Chrysene 0.11 1.2E-01 0.15 5.8E-08 <br /> Dibenz a,h anthracene 0.0073 4.1E+00 0.15 1.3E-07 <br /> ' Fluoranthene 0.068 NA 0.15 NA <br /> Fluorene 0.87 NA 0.15 NA <br /> Naphthalene 1.9 NA 0.15 NA <br /> Phenanthrene 1.2 NA 0.15 NA <br /> ' <br /> Pyrene 0.19 NA 0.15 NA <br /> METALS <br /> Barium 230 NA 0.01 NA <br /> Beryllium 0.94 NA 0.01 NA <br /> Chromium III 48 NA 0.01 NA <br /> Cobalt 14 NA 0.01 NA <br /> Copper 185 NA 0.01 NA <br /> ' Lead 40 8.5E-03 0.01 6.0E-07 <br /> Mercury 0.019 NA 0.01 NA <br /> Mol bdenum1.0 NA 0.01 NA <br /> ' Nickel 43 NA 0.01 NA <br /> Vanadium 82 NA 0.01 NA <br /> Zinc 143 NA 0.01 NA <br /> Total Risk: 2.7E-06 <br /> ' Equation: <br /> Oral/Dermal Risk=(SFo x Cs x[1.57 x 10-6])+(SFo x Cs x[1.87 x 10-5]x ABS) <br /> ' Where: <br /> SFo=oral cancer slope factor,(mg/kg-day)-1 <br /> 1 Cs=cosoncentration m soil,mg/kg <br /> ABS=abtion fraction,dimensionless(Source:PEA Manual,Page A-6). <br /> Abbreviations: <br /> ' BTEX=Benzene,toluene,ethylbenzene,and total xylenes <br /> COPC=Constituent of potential concern <br /> mg/kg=Milligrams per kilogram <br /> NA=Not Applicable <br /> PAHs=Polynuclear aromatic hydrocarbons <br /> PEA=Preliminary Endangerment Assessment <br /> Equation Source: <br /> ' PEA Manual,Figure 2.3. SAIC <br /> Page 1 of 1 <br />